/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xml2;
import com.caucho.util.CharBuffer;
import com.caucho.xpath.pattern.NodeListIterator;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
/**
* Generic implementation of a node list.
*/
public class NodeListImpl implements NodeList {
private ArrayList<Node> _nodeList = new ArrayList<Node>();
/**
* Creates an empty node list.
*/
public NodeListImpl()
{
}
/**
* Creates a node list from a collection.
*/
public NodeListImpl(Collection<Node> collection)
{
_nodeList.addAll(collection);
}
/**
* Adds an item.
*/
public void add(Node node)
{
_nodeList.add(node);
}
/**
* Returns the item at the index.
*/
public Node item(int index)
{
if (index < 0 || _nodeList.size() <= index)
return null;
return _nodeList.get(index);
}
/**
* Returns the number of items in the list.
*/
public int getLength()
{
return _nodeList.size();
}
public String toString()
{
CharBuffer cb = new CharBuffer();
cb.append("NodeListImpl[");
for (int i = 0; i < getLength(); i++) {
if (i != 0)
cb.append(", ");
cb.append(item(i));
}
cb.append("]");
return cb.toString();
}
// for quercus
public Iterator<Node> iterator()
{
return new NodeListIterator(null, this);
}
}